Sophos Anti-Virus 6.5.4 Vulnerability
Name Cross Site Scripting Vulnerability in Sophos Anti-Virus
Systems Affected Sophos Anti-Virus, version 6.5.4 R2
Severity Medium
Category Cross Site Scripting
Author Context Information Security Ltd
Advisory 6th September 2007
Description
-----------
A ZIP archive containing a virus signature with a malformed file name will
cause a Cross Site Scripting vulnerability to be triggered from within the
Sophos Anti Virus client.
Analysis
--------
When Sophos anti-virus scans a specially crafted ZIP archive containing a XSS
attack string, it will internally log the string. When this information is
accessed via the Sophos client (SavMain.exe) the XSS attack string is
unencoded. When the print function is called, the application can be used to
run arbitrary code on the target machine from an external attacker?s submitted
file.
Technologies Affected
---------------------
Sophos Anti-Virus, version 6.5.4 R2
Resolution
----------
Update to version 6.5.8 or 7.0.
Vendor Response
---------------
Sophos have patched this issue in version 7.01.
CVE Details
-----------
This issue has been provisionally assigned a CVE candidate number of
CVE-2007-4512
Disclosure Timeline
-------------------
18 April 2007 ? Initial Discovery and vendor notification
19 April 2007 ? Vendor Response
21 August 2007 ? Second Vendor Response
6 September 2007 - Coordinated Public Release
Credits
--------
Michael Jordon of Context Information Security Ltd
About Context Information Security
----------------------------------
Context Information Security Limited is a specialist information security
consultancy based in London and Frankfurt. Context promotes the holistic
approach to information security and helps clients to identify, assess and
control their exposure to risk within the fields of IT, telephony and physical
security. Context employs experienced information security professionals who
are subject-matter experts in their various technical specialisms. Context
works extensively within the finance, legal, defence and government sectors,
delivering high-end information security projects to organisations for which
security is a priority.
Web: www.contextis.co.uk
Email: disclosure@xxxxxxxxxxxxxxx
About Sophos
------------
"Sophos is a world leader in IT security and control solutions purpose-built
for business, education, government organizations and service providers. Our
reliably engineered, easy-to-operate products protect over 100 million users in
more than 150 countries from viruses, spyware, adware, Trojans, intrusion,
spam, policy abuse, and uncontrolled network access."